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M032

Balboa M032: sensor B fault

M032 is printed next to Sensor B Fault. The same sentence covers both sensors: a temperature sensor or sensor circuit has failed, and the step is call for service. This wording is from Balboa guide 40985-G, 26 March 2014, for BP2500 and BP2600 with a TP800 or TP900 panel.

A temperature sensor or sensor circuit has failed.

Models this page covers: BP2500, BP2600, TP900, TP800

Do this first

  1. Power

    Do not replace the sensor yourself

    Leave sensor B connected. The guide does not describe a home replacement. Leave the housing closed and call for service.

When to call a technician

Call a technician now if

  • The breaker or the RCD trips when the pump is plugged in.
  • You smell burning, see melted plastic, or the water is too hot to touch.
  • The code comes back after one reset.

Also call for these, from the manual

  • Call for service for a Sensor B fault. Do not open the heater to reach the sensor.

Questions

Why does M032 use the same sentence as M031?

The guide prints one explanation for both: a temperature sensor or sensor circuit has failed. It labels Sensor A as M031 and Sensor B as M032. It does not add a separate test for B.

Manuals we checked